US3131574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism for hydraulic system
Assignee: Deere and Co
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Filing: 1960-08-12
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Granted: 1964-05-05
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Expires: 1980-08-12
Abstract
No abstract record available.
Inventors
- 👤 John L Clingerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:55
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/20; E02F9/2004; G; G05; G05G; G05G9/00; G05G9/02; G05G9/04; G05G9/047; G05G2009/04703; G05G2009/04714; G05G2009/04718; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87056; Y10T137/8708; Y10T74/00; Y10T74/20; Y10T74/20012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A CONTROL MECHANISM COMPRISING: A SUPPORT FRAME; FIRST, SECOND, AND THIRD OPERATORS; A FIRST CONTROL ARM EXTENDING FROM THE FIRST OF SAID OPERATORS; A FIRST ARTICULATE CONNECTION BETWEEN THE FIRST OPERATOR AND THE FIRST CONTROL ARM; THE SECOND CONTROL ARM EXTENDING FROM THE SECOND OPERATOR; A SECOND ARTICULATE CONNECTION BETWEEN THE SECOND OPERATOR AND THE SECOND CONTROL ARM; MEANS PIVOTALLY CONNECTING THE FIRST AND SECOND ARMS TO THE FRAME; A CONTROL LEVER; MEANS SUPPORTING THE CONTROL LEVER TO PERMIT THE LEVER TO MOVE IN AT LEST TWO DIRECTIONS AND TO SWIVEL; MEANS CONNECTING THE FIRST AND SECOND CONTROL ARMS TO THE LEVER SO THAT AS THE LEVER MOVES IN ONE OF SAID TWO DIRECTIONS SAID FIRST CONTROL ARM WILL ACTUATE THE FIRST OPERATOR AND AS THE LEVER MOVES IN THE OTHER OF SAID TWO DIRECTIONS SAID SECOND CONTROL ARM WILL ACTUATE THE SECOND OPERATOR; A THIRD CONTROL ARM PIVOTALLY MOUNTED ON THE FRAME; AN ARTICULATE CONNECTION BETWEEN THE THIRD CONTROL ARM AND THE THIRD OPERATOR; AND LINKAGE MEANS EXTENDING BETWEEN THE THIRD CONTROL ARM AND THE LEVER AND EFFECTIVE UPON SWIVELLING OF THE LEVER TO ACTUATE SAID THIRD OPERATOR.
Claim 2
Dependent Claim
189 words
A CONTROL MECHANISM COMPRISING: A SUPPORT FRAME; FIRST, SECOND, AND THIRD OPERATORS; A FIRST CONTROL ARM EXTENDING FROM THE FIRST OF SAID OPERATORS; A FIRST ARTICULATE CONNECTION BETWEEN THE FIRST OPERATOR AND THE FIRST CONTROL ARM; THE SECOND CONTROL ARM EXTENDING FROM THE SECOND OPERATOR; A SECOND ARTICULATE CONNECTION BETWEEN THE SECOND OPERATOR AND THE SECOND CONTROL ARM; MEANS PIVOTALLY CONNECTING THE FIRST AND SECOND ARMS TO THE FRAME; A CONTROL LEVER; MEANS SUPPORTING THE CONTROL LEVER TO PERMIT THE LEVER TO MOVE IN AT LEST TWO DIRECTIONS AND TO SWIVEL; MEANS CONNECTING THE FIRST AND SECOND CONTROL ARMS TO THE LEVER SO THAT AS THE LEVER MOVES IN ONE OF SAID TWO DIRECTIONS SAID FIRST CONTROL ARM WILL ACTUATE THE FIRST OPERATOR AND AS THE LEVER MOVES IN THE OTHER OF SAID TWO DIRECTIONS SAID SECOND CONTROL ARM WILL ACTUATE THE SECOND OPERATOR; A THIRD CONTROL ARM PIVOTALLY MOUNTED ON THE FRAME; AN ARTICULATE CONNECTION BETWEEN THE THIRD CONTROL ARM AND THE THIRD OPERATOR; AND LINKAGE MEANS EXTENDING BETWEEN THE THIRD CONTROL ARM AND THE LEVER AND EFFECTIVE UPON SWIVELLING OF THE LEVER TO ACTUATE SAID THIRD OPERATOR.
References Cited (Backward Citations)
US2664708A
Cited
US2745624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |